Nut-lock.



PATBNTED JAN. 29, 1907.

W. GMEINER. NUT LOCK.

' a 4 m mm A TTOR/VE VS cordance with my invention.

Unrrnn STATES PATENT orricn.

WILLIAM GMEI'NER, PITTSBURG, KANSAS, ASSIGNOR OFONE-FOURTH TO JOHN A. CAMERON AND ONE-FOURTH TO ALPI-IONSQN J. GLIEINER, OF

PITTSBURG, KANSAS.

NUT-LOCK.

Patented'Jan. 29, 1907.

Application filed October 29,1906. Serial No. 841,160.

To all 1072,0721 it may concern: I

Be it known that I, WVILLIAM GMEINER, a citizen of the United States, residing at Pittsburg, in the county of Crawford and State of Kansas, have invented a new and useful.

Nut-Lock, of which the following is a specification.

This invention relates to nutlocks, and has for its object to provide a comparatively simple and inexpensive device of this char acter by means of which the nut may be cf; fectually locked against accidental displace.- ment. j I

A further object of the invention is to provide a nut having a kerf or recess intersecting two of its side walls for the reception of one end of a spring locking-pawl, the opposite end of said pawl being adapted to engage a longitudinal groove formed in the bolt, thereby to prevent rotation of the nut on said bolt.

A'further object is to provide the fixed end of the pawl with spaced notches or recesses, whereby the metal forming the walls of the nut may be pressed orforced inwardly against the notches, so as to retain the pawl in position on the nut without the employment of screws, rivets, or similar fastening devices.

A still further object of the invention is to generally improve this class of devices so as to increase their utility, durability, and efficiency, as well as to reduce the cost of manufacture.

WVith these and other objects in View the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, and illustrated in the accompanying drawings, it being understood that various changes in form, proportions, and minor details of construction may be resorted to within the scope of the appended claims.

In the accompanying drawings, forming a part of this specification, Figure 1 is a perspective view of a nut-lock constructed in ac- Fig. 2 is a top plan view of the same. Fig. 3 is a transverse sectional view showing the pawl seated in the kerf of the nut preparatory to pressing the metal in the notches. Fig. 4 is a similar view showing the metal seated in the notches. Fig. 5 is a perspective view of the pawl detached. Fig. 6 is a transverse sectional view illustrating a modified form of the invention.

ignates ,the bolt provided with the usual threads 6 for the reception of the nut 7. The

nut 7, which may be of any desired shape or,

configuration, is preferably rectangular in form and provided witha vertical kerf or recess 8, preferably formed at the intersection or juncture of two of its side walls, as best illustrated in Figs. 1 and 3 of the drawings.

Seated in the kerf or recess 8 is one arm 9 of a locking-pawl, the opposite arm 10 of which projects above the upper surface of the nut and is provided with a terminal lip 11 for engagement with a longitudinal lockinggroove 12, formed in the bolt 5. V

The arm 9 of the pawl is provided at one longitudinal edge thereof with spaced V- shaped notches or recesses 13, adapted to receive the metal forming the side walls of the nut, said metal being pressed inwardlywith a chisel or other-suitable tool into engagement with the walls of the recesses 13, thus forming locking-lugs 14 and securely retaining the pawl in position on the nut without the em ployment of screws, rivets, and similar fastening devices.

In assembling the parts comprising the nutlock the arm 9, of the pawl is introduced into the kerf or recess 8, after which the metal forming the side walls of the nut is forced inwardly from opposite directions with a suitable tool into engagement with the recesses 13. The nut is then adjusted longitudinally on the bolt into engagement with the object to be clamped, and in which position the ter- 7 minal lip 11 of the pawl will enter the longitudinal groove 12, and thus effectually prevent accidental rotation of the nut.

In order to remove the nut, it is merely necessary to introduce a knife or similar. tool beneath the lip of the pawl, so as to disengage the lip from the groove 12, when the nut may be removed from the bolt in the usual manner. any number of locking-grooves 12, and the pawlinstead of being positioned at'the junc- The bolt 5 maybe formed with ture of the side walls of the nut may be arranged intermediate their enrls, the result accomplished being the same in both cases.

In Fig. 6 of the slrawings there is illustrated a mo; tied form of the invention in which the metal 14, forming one wall of the nut, is pressezi laterally through the notches or recesses 13 into engagement with the adjacent wall of the kerf S'instearl of being forced inwarzlly from opposite sites of the pawl.

From the foregoing description it will be seen that there is provided an extremely simple, inexpensive, and efficient (levice acimirably adapted for the attainment of the enfis in view.

Having thus described the invention, what is claimed is o 1. The combination with a bolt having a longitudinal groove formed therein, of a nut having a kerf disposal at the intersection of two of its si-fiewalls, and a pawl having angularlyiisposeri arms one of which is seated in the kerf and provided at one longitucinal edge thereof with spaced recesses and the 0pposite arm provislezl with a terminal laterallyeXten fing lip arlapted to enter the groove in the bolt, the metal forming the Walls of the nut being pressed laterally into engagement with the recesses in the pawl.

2. The combination with a bolt having a longitudinal groove formed therein, of a nut having a kert disposed at the intersection of two of its side walls, anal a pawl. having angularly-rlisposefi arms one of which is seate: in said kerf anal proviied with space"? rece s and the opposite arm provie-zi with terminal lip adapted to engage the groove in the bolt, the metal forming the walls of the nut being presse l laterally into engagement with the recesses in the pawl. i

3. The combination with a bolt DIOVliiGil with a longitudinal groove, of a nut having a kerf formed at the intersection of two of its sirie'walls, and a pawl provii ed with integral I angularly-fiisposerl arms one of which is seateii in the kert anti provifei'l with a plurality of space?! \I-shapecl recesses, the opposite arm being extend (l above an} parallel with the upper surface of the nut and provi fetl with a terminal laterally-extcn ing lip for engagement with the groove in the bolt, the metal forming the walls of the nut being pressed laterally into engagement with. the recesses in the pawl.

In testimony that I claim the tcregcing as my own I have hereto aflixe-i my signature in the presence of two witnesses.

WILLIAM GMEINER.

Witnesses A. J. CURRAN, T. W. COGSWELL. 

